{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "cell line", "DNA", "RNA", "cell type"], "input": "The present study employs RNA protection assays to analyze the transcriptional status of the HS2 enhancer in transfected recombinant chloramphenicol acetyltransferase ( CAT ) plasmids ."}
{"protein": ["chloramphenicol acetyltransferase", "CAT"], "cell line": [], "DNA": ["HS2 enhancer", "transfected recombinant chloramphenicol acetyltransferase ( CAT ) plasmids"], "RNA": [], "cell type": []}